HackingFinancial ServicesFinanceData ExfiltratedPIIMediumResolved
Marquis (breach of NSB data)
bd_e34ab07ef645b350 · schema v1 · pii pii-v1
Full breach record for Marquis (breach of NSB data) →Marquis, a vendor of Norway Savings Bank, experienced a data breach affecting 51,000 individuals, including 44,259 Maine residents.
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Maine clockDiscovered Aug 14, 2025 → Filed with AG Nov 20, 202598d ✗ ME AG >90d14 weeks discovery → filing
⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.
Incident timeline
discovery → filing · 14 weeks / 98 days
Aug 14, 2025
Begins
Aug 14, 2025
Discovered
Nov 20, 2025
Filed
vs. sector median
+5 wks slower
Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed51,000 affectedView incident
Evidence ladder
Leak-site claim
Attacker assertion only. Establishes: claim date, group, alleged victim.
Press / market report
Unlocks: incident narrative, operational impact. Still no compliance clock.
State AG / regulator filingThis record
Unlocks: discovery date, data types, affected count, compliance clock.
SEC 8-K / victim statement
Unlocks: materiality, stated response, full audit trail. Ceiling removed.